406266142134540 has 48 divisors (see below), whose sum is σ = 1137590373362688. Its totient is φ = 108333335484864.

The previous prime is 406266142134527. The next prime is 406266142134553. The reversal of 406266142134540 is 45431241662604.

It is an interprime number because it is at equal distance from previous prime (406266142134527) and next prime (406266142134553).

It is a super-2 number, since 2×406266142134540² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 406266142134540.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132926982 + ... + 135948941.

It is an arithmetic number, because the mean of its divisors is an integer number (23699799445056).

Almost surely, 2^{406266142134540} is an apocalyptic number.

It is an amenable number.

406266142134540 is an abundant number, since it is smaller than the sum of its proper divisors (731324231228148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

406266142134540 is a wasteful number, since it uses less digits than its factorization.

406266142134540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268901118 (or 268901116 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 48.

The spelling of 406266142134540 in words is "four hundred six trillion, two hundred sixty-six billion, one hundred forty-two million, one hundred thirty-four thousand, five hundred forty".